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Summary
Intraosseous infusions using the calcaneus (heel bone) successfully delivered fluids to systemic veins in adult cadavers. This demonstrates the calcaneus as a viable, accessible site for intraosseous infusions in adults.
Area of Science:
- Emergency Medicine
- Anatomy
- Surgical Techniques
Background:
- Intraosseous infusions are a critical method for rapid fluid and medication delivery when intravenous access is challenging.
- Traditional intraosseous access primarily targets long bones with medullary cavities.
- The feasibility of calcaneal intraosseous infusions in adults requires further investigation.
Purpose of the Study:
- To evaluate the efficacy of calcaneal intraosseous infusions in delivering fluids to systemic circulation.
- To determine if intraosseous infusions require a medullary cavity for success.
- To establish the viability of intraosseous infusions in adult anatomical sites.
Main Methods:
- Ten adult cadavers were utilized for the study.
- 16-gauge intraosseous needles were inserted into the calcaneus.
- Methyl green dye was infused, and its presence in superficial leg veins was documented via digital photography.
Main Results:
- Successful venous entry of the dye was observed in 14 out of 20 tested legs.
- Delayed venous entry was noted in an additional two legs.
- Intraosseous access failed in one cadaver, and no venous entry occurred in another.
Conclusions:
- Calcaneal intraosseous infusions are a feasible method for fluid delivery.
- This technique is effective in adult populations.
- The calcaneus offers an accessible intraosseous site with minimal risk to surrounding vital structures.